r65535 commented on code in PR #6337: URL: https://github.com/apache/nifi/pull/6337#discussion_r981135645
########## nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/ValidateJson.java: ########## @@ -0,0 +1,203 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.nifi.processors.standard; + +import org.apache.nifi.components.AllowableValue; +import org.apache.nifi.components.PropertyDescriptor; +import org.apache.nifi.expression.ExpressionLanguageScope; +import org.apache.nifi.flowfile.FlowFile; +import org.apache.nifi.annotation.behavior.EventDriven; +import org.apache.nifi.annotation.behavior.InputRequirement; +import org.apache.nifi.annotation.behavior.SideEffectFree; +import org.apache.nifi.annotation.behavior.SupportsBatching; +import org.apache.nifi.annotation.behavior.WritesAttribute; +import org.apache.nifi.annotation.behavior.WritesAttributes; +import org.apache.nifi.annotation.behavior.InputRequirement.Requirement; +import org.apache.nifi.annotation.documentation.CapabilityDescription; +import org.apache.nifi.annotation.documentation.Tags; +import org.apache.nifi.annotation.lifecycle.OnScheduled; +import org.apache.nifi.processor.exception.ProcessException; +import org.apache.nifi.processor.AbstractProcessor; +import org.apache.nifi.processor.ProcessContext; +import org.apache.nifi.processor.ProcessSession; +import org.apache.nifi.processor.ProcessorInitializationContext; +import org.apache.nifi.processor.Relationship; +import org.apache.nifi.processor.util.StandardValidators; + +import java.io.IOException; +import java.io.InputStream; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashSet; +import java.util.List; +import java.util.Set; + +import com.fasterxml.jackson.databind.JsonNode; +import com.fasterxml.jackson.databind.ObjectMapper; +import com.networknt.schema.JsonSchema; +import com.networknt.schema.JsonSchemaFactory; +import com.networknt.schema.ValidationMessage; +import com.networknt.schema.SpecVersion.VersionFlag; + +@EventDriven +@SideEffectFree +@SupportsBatching +@InputRequirement(Requirement.INPUT_REQUIRED) +@Tags({"JSON", "schema", "validation"}) +@WritesAttributes({ + @WritesAttribute(attribute = "validatejson.invalid.error", description = "If the flow file is routed to the invalid relationship " + + "the attribute will contain the error message resulting from the validation failure.") +}) +@CapabilityDescription("Validates the contents of FlowFiles against a user-specified JSON Schema file") +public class ValidateJson extends AbstractProcessor { + + public static final String ERROR_ATTRIBUTE_KEY = "validatejson.invalid.error"; + + public static final AllowableValue SCHEMA_VERSION_4 = new AllowableValue("V4"); + public static final AllowableValue SCHEMA_VERSION_6 = new AllowableValue("V6"); + public static final AllowableValue SCHEMA_VERSION_7 = new AllowableValue("V7"); + public static final AllowableValue SCHEMA_VERSION_V201909 = new AllowableValue("V201909"); + + public static final PropertyDescriptor SCHEMA_VERSION = new PropertyDescriptor + .Builder().name("SCHEMA_VERSION") + .displayName("Schema Version") + .description("The JSON schema specification") + .required(true) + .allowableValues(SCHEMA_VERSION_4, SCHEMA_VERSION_6, SCHEMA_VERSION_7, SCHEMA_VERSION_V201909) + .defaultValue(SCHEMA_VERSION_V201909.getValue()) + .build(); + + public static final PropertyDescriptor SCHEMA_TEXT = new PropertyDescriptor + .Builder().name("SCHEMA_TEXT") + .displayName("Schema Text") + .description("The text of a JSON schema") + .required(true) + .expressionLanguageSupported(ExpressionLanguageScope.VARIABLE_REGISTRY) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .build(); + + public static final Relationship REL_VALID = new Relationship.Builder() + .name("valid") + .description("FlowFiles that are successfully validated against the schema are routed to this relationship") + .build(); + + public static final Relationship REL_INVALID = new Relationship.Builder() + .name("invalid") + .description("FlowFiles that are not valid according to the specified schema are routed to this relationship") + .build(); + + public static final Relationship REL_FAILURE = new Relationship.Builder() + .name("failure") + .description("FlowFiles that cannot be read as JSON are routed to this relationship") + .build(); + + private List<PropertyDescriptor> descriptors; + + private Set<Relationship> relationships; + + private List<AllowableValue> allowableValues; Review Comment: I'll keep this in so it's consistent with other processors (as a lot seem to do this) -- This is an automated message from the Apache Git Service. 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